.toc-container {
  width: 18%;
  position: fixed;
  top: 76px;
  right: 0;
  bottom: 12px;
  overflow-y: auto;
  overflow-x: hidden;
}

.toc-inner {
  @include font-size(13);
  overflow-y: visible;
  padding: 4px 0 0 10px;

  .toc-heading,
  .toc-list .h1 {
    @include font-size(16);
  }

  .toc-heading {
    font-weight: 500;
    margin: 0 0 16px 8px;
    padding: 0;

    &.secondary {
      position: relative;
      top: -8px;

      &:hover {
        color: $accentblue;
      }
    }
  }

  button {
    &.toc-heading,
    &.toc-more-items {
      cursor: pointer;
      display: inline-block;
      background: 0;
      background-color: transparent;
      border: none;
      box-shadow: none;
      padding: 0;
      text-align: start;

      &.embedded:focus {
        outline: none;
        background: $lightgray;
      }
    }

    &.toc-heading {
      mat-icon.rotating-icon {
        height: 18px;
        width: 18px;
        position: relative;
        left: -4px;
        top: 5px;
      }

      &:hover:not(.embedded) {
        color: $accentblue;
      }
    }

    &.toc-more-items {
      color: $mediumgray;
      top: 10px;
      position: relative;

      &:hover {
        color: $accentblue;
      }

      &::after {
        content: 'expand_less';
      }

      &.collapsed::after {
        content: 'more_horiz';
      }
    }
  }

  .mat-icon {
    &.collapsed {
      @include rotate(0deg);
    }

    &:not(.collapsed) {
      @include rotate(90deg);
    }
  }

  ul.toc-list {
    list-style-type: none;
    margin: 0;
    padding: 0 8px 0 0;

    @media (max-width: 800px) {
      width: auto;
    }

    li {
      box-sizing: border-box;
      @include font-size(12);
      @include line-height(16);
      padding: 3px 0 3px 12px;
      position: relative;
      transition: all 0.3s ease-in-out;

      &.h1:after {
        content: '';
        display: block;
        height: 1px;
        width: 40%;
        margin: 7px 0 4px 0;
        background: $lightgray;
        clear: both;
      }

      &.h3 {
        padding-left: 24px;
      }

      a {
        color: lighten($darkgray, 10);
        overflow: visible;
        @include font-size(12);
        display: table-cell;
      }

      &:hover {
        * {
          color: $accentblue;
        }
      }

      &.active {
        * {
          color: $blue;
          font-weight: 500;

          &:before {
            content: '';
            border-radius: 50%;
            left: -3px;
            top: 12px;
            background: $blue;
            position: absolute;
            width: 6px;
            height: 6px;
          }
        }
      }
    }

    &:not(.embedded) li {
      &:before {
        border-left: 1px solid $lightgray;
        bottom: 0;
        content: '';
        left: 0;
        position: absolute;
        top: 0;
      }

      &:first-child:before {
        top: 13px;
      }

      &:last-child:before {
        bottom: calc(100% - 14px);
      }

      &:not(.active):hover a:before {
        content: '';
        border-radius: 50%;
        left: -3px;
        top: 12px;
        background: $lightgray;
        position: absolute;
        width: 6px;
        height: 6px;
      }
    }
  }
}

// Alternative TOC View for Smaller Screens
aio-toc.embedded {
  @media (min-width: 801px) {
    display: none;
  }

  .toc-inner {
    padding: 12px 0 0 0;

    .toc-heading {
      margin: 0 0 8px;
    }
  }

  > div.collapsed li.secondary {
    display: none;
  }
}
